Remove specific element from array in Knockout.JS

You have to use the remove function :

self.removePlayer = function (Name) {
    self.players.remove(function(player) {
        return player.name == Name;
    });
    
}

See fiddle

html

<table id="userlist2" class="tablesorter" cellspacing="0">
    <thead>
        <tr>
            <th>Name</th>
            <th>Queue</th>
            <th>Points</th>
        </tr>
    </thead>
    <tbody data-bind="foreach: players">
        <tr>
            <td data-bind="text: name"></td>
            <td data-bind="text: queue"></td>
            <td data-bind="text: score"></td>
        </tr>
    </tbody>
</table>

javascript

function PlayerViewModel() {
    var self = this;
    
    self.players = ko.observableArray();  

    self.addPlayer = function (Name, QueuePos, Score) {
        self.players.push({
            name: Name,
            queue: QueuePos,
            score: Score
        });
    }

    self.removePlayer = function (Name) {
        self.players.remove(function(player) {
            return player.name == Name;
        });
    }
}

players = new PlayerViewModel();
ko.applyBindings(players);

players.addPlayer('Player1', '0', '0');
players.addPlayer('Player2', '0', '0');
players.removePlayer('Player2');